【正文】 uces the coal country synthesis to pick the working surface hydraulic support39。提出了制定電液控制系統(tǒng)相關(guān)元部件生產(chǎn)制造統(tǒng)一標(biāo)準(zhǔn)、統(tǒng)一過濾元件行業(yè)標(biāo)準(zhǔn)及建立電液控制系統(tǒng)工作面主動預(yù)防與被動過濾防護(hù)相結(jié)合的清潔度控制體系的重要性，建立健全過濾防護(hù)體系，進(jìn)一步發(fā)揮國產(chǎn)支架電液控制系統(tǒng)性能。這還是以有一個(gè)好的過濾系統(tǒng)為前提。如果發(fā)現(xiàn)最大顆粒為 20μ m，則過濾精度為 20μ m。必須從支架及其液壓附件生產(chǎn)、介質(zhì)清潔度控制和現(xiàn)場維護(hù)等幾個(gè)方面共同著手，才能充分展示電液控制系統(tǒng)的優(yōu)勢。假如 5μ m 顆粒上下游比值為 20，則可理解為 5μ m 過濾效率為 95%。 目前面臨的問題、原因及解決途徑 隨著電液控制系統(tǒng)的推廣應(yīng)用，也遇到了一些問題，制約著電液控制系統(tǒng)的使用和性能的充分發(fā)揮，具體表現(xiàn)在以下幾個(gè)方面： ①系統(tǒng)液壓元件故障率較全套引進(jìn)系統(tǒng)相比偏高一些，特別是在工作面試生產(chǎn)和生產(chǎn)初期。s filter fineness defines differently, but based on one test method, namely pellet transmission law, Therefore the modern filtration counting abolished the former aperture measuring method to the filter characteristic evaluation and filters the material item of number law, but still continues to use in coal profession many enterprises and the user filters the material number law. This causes in the market the same 25μm filter operational accuracy difference to be very big. On the other hand, regarding the high accuracy filter (25μm), filters the material the choice and the processing is very strict, some enterprises cheat on labor and materials the choice to filter the material or the processing craft inferior do not go through a strategic pass, create the filter element processing flaw. Although filters the material choice to be appropriate because, but the processing craft is unqualified causes the filter end product precision to reduce obviously, cannot satisfy the system request. Therefore should formulate the battery solution control system to produce, the processing and examination profession standard especially important as soon as possible with the filter. ④ Entire filtration system not perfect or inadequate system, creates the system existence crack or the system function cannot display fully, serious influence battery solution control system performance display. Because does not have the filtration or the filter position is inappropriate, creates key protects the part not to obtain the protection, even if on the other hand had the filtration system, must plete the prevention, avoids the pollutant entering the system as far as possible, achieves cleanliness guarantee system which the driving prevention and the passive filtration protection unify, only then can guarantee the entire battery solution control system39。 Filter fineness 1 、 hydraulic support battery solution control system39。s superiority The hydraulic support battery solution control system is by electronic installations and the hydraulic circuit control portion and so on monolithic integrated circuit, sensor is posed, may need to control the hydraulic support automatic performance according to the production the system. ① Behind may fall the hydraulic support, to try to break up a fight, to rise the frame, the passage front part conveyer, to pull the conveyer, to receive protects helps the board, to extend protects helps the board, the atomization water spray and puts goes against movements and so on coal to change by the original manpower manual operation the battery solution automatic control, the sequencing to operate, Can match with the highly effective coal mining machine speeds up the working surface a